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Advice needed on newly rooted plants
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Posted by
t-bred 5 (
My Page) on
Fri, Jul 6, 12 at 9:47
| I apologize in advance for not posting in the correct forum, this main forum seems to get more traffic. I have approx. 10 recently potted(1-2 weeks ago) rooted cuttings. They were all doing great until these over 100 degree days hit. Now they are all experiencing some degree of wilt. They are planted in 4" pots with a soiless mix. I keep them damp but not wet, I'm leery of rotting baby roots. I put them in shade other than an hour or two of morning sun,and am also misting the new leaves throughout the day. I read Lyn's excellent description of transpiration on another post which explained why the tops are wilting. The problem is once these leaves wilt, they die. Should I bring them in the house until the extreme heat passes? Might the plants that lost a great deal of the new leaves bounce back? Thanks! |
Follow-Up Postings:
RE: Advice needed on newly rooted plants
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| Where did you have them while you were rooting them? I'd put them back there. I'd also put saucers under them. Figure out how much water needs to go into the saucer so it is gone by sundown. Put that much in every morning. This should work unless the potting mix is almost entirely peat. I don't do peat. Water management of peat soils is too hard. |
RE: Advice needed on newly rooted plants
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| Yes, the plants might very well produce new leaves. Given the heat most of us our experiencing now, I would not give newly rooting cuttings ANY direct sunlight. Even in most shaded locations, the cuttings will receive enough reflected light to thrive. If both the soilless mix and the pots you've used provide excellent drainage, water the cuttings well. Considering the stresses brought on by this heat, a barely damp potting medium may not be moist enough. Especially with young plants that have lost leaves, the root development that's going on below the soil is equally as (if not more) important than what you can see. |
RE: Advice needed on newly rooted plants
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| Thanks for the quick replies. The cuttings were rooted in sand under a continual light mist.The mix they were potted into is primarily peat with some perlite in it and I think would be a disaster to put that under the misters. I agree Mad Gallica, it is difficult to control the moisture,what would you recommend when potting up(I still have 30ish cuttings under misters)? Thank you Jaxondel for your words of encouragement that they may still grow,I was worried with the new leaves drying out would stop bottom growth. I moved them for the time to an area that gets zero sun and hopefully they will rebound a little. It's so frustrating to have so many babies root well only to lose them to this crazy weather! |
RE: Advice needed on newly rooted plants
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| In the past, I've gone to pretty extreme lengths to acquire various ingredients to mix my own medium for newly rooted cuttings. Last year I rooted a boatload of 'Gruss an Aachen' plants, almost 100% of which struck and took off like gang busters before I had a chance to "get my act together". In a rush, I opted to use MiracleGro African Violet Potting Mix instead. I grew the cuttings in band pots filled with that mix from mid-May until late August. I was so pleased with the root systems that developed that I may never mix my own medium again. I'll admit, though, that GaA is among the easiest of the roses I've rooted. I'm waiting to see if my 2012 crop of Bourbons and Chinas do equally as well as GaA did in the AV stuff. |
RE: Advice needed on newly rooted plants
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- Posted by seil z6b MI (My Page) on
Fri, Jul 6, 12 at 14:18
| I wouldn't recommend bringing them inside. It's too dry in most homes for them. Keep doing what you've been doing and they will eventually put out new growth for you. I usually always have leafless sticks for a bit before they begin to grow again. |
RE: Advice needed on newly rooted plants
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| With this heat, you definitely don't want any direct sun at any time of day. You stated they were rooted under continual mist. They need to be gradually hardened off that mist because the constant film of water on the plant tissues makes them very soft and highly susceptible to being fried by the hot, direct sun and drier air without the constant mist. It's very much what happens to us when we've been inside all winter then hit the beach (or garden) for a long, warm sunny day. We fry very quickly. As with our skin, the plant tissues need to be gradually exposed to increasing levels of hot sun and drier air so they get acclimated to the harsher conditions. I'd put them in dappled sunlight, no direct, and keep them watered as has already been suggested. If they can be nestled among other plants in that type of light situation, the transpiration of moisture from the other plants will raise the humidity around the cuttings, cooling the air and helping them to harden off more gently. Once they've begun showing new growth, their roots should be developed as they should grow roots before tops. Gradually move them into more direct light until they are hardened off and can be planted as you desire. Good luck! Kim |
RE: Advice needed on newly rooted plants
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| I root under mist with a SHARP sand/coco fiber mix. I pot up rooted plants in bands or cut-off plastic water or soda pop bottles with 4-5 large drain holes bored out. I put a loose potting soil (like Miracle-Grow or African Violet mix) in the 3-4 bottom inches, then "mud-in" the plants in their original rooting medium in the top 2-3". I flood out the rooted cuttings in a basin of water. I've had a lot less rot when I slop ~1-2 tablespoons of peroxide per gallon in the water I use to flood loose the cuttings & water them in. I water with the peroxide water for about a week (Also use this to saturate the medium when initially rooting). Then I use a super-light dose of water soluble fertilizer starting the next couple of weeks--like 1/4 strength. Keep hand misting while they are hardening off. First week in full shade, next 2 in dappled. Accidentally found another big help. Had a scrap piece of carpet under a tall shady shrub. I hose it down daily & have the babies in a grated plastic shelf on top. Instant evaporative cooler that keeps them moist & degrees cooler. hope this helps. |
RE: Advice needed on newly rooted plants
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| Thanks for all the advice! Out of the 10 that I potted, 6 of them had already lost the original leaves and put on new leaves, this tender new growth fared much worse than the remaining 4 with the original leaves. I've found the new leaves to be much more water repellent than old leaves (I'm thinking the leaf surface gets worn away under the constant mist while rooting and allows better absorbtion?)so even hand misting didn't help those new leaves and quite a few were lost. Hoping they will regrow. I did put them in a shady spot and watered them more than I normally would.They look perkier this morning. My rooting/misting system is setup in full sun for most of the day. In an "ordinary" year they do fine when I pot them up and do occasional hand misting. It's my fault and all part of the learning curve for not taking this years extreme conditions into consideration. Next summer will probably be 50 and rainy! Great information regarding your methods Bluegirl! I'll crack open the peroxide. Jaxondel seems to like AV mix as well,going to pick some up for my plants still under misters. My cuttings root so well in sand, I've often thought it's too bad I couldn't grow them on in it. Would love to get some band pots, the plants I've received grown in them have had huge root systems (dumb me never saved them) Every supplier I have found only sells large quantities. We are supposed to "drop" into the eighties after today,hopefully that will get things back on track and I can SLOWLY reintroduce these to limited sun. Thanks again to everyone! |
RE: Advice needed on newly rooted plants
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| try putting an application or Wilt Pruf on the cuttings. That will help with the moisture loss. I also have my cuttings in a plastic jug to set up a greenhouse effect for the cuttings. The jug is a milky white color so the cuttings don't get direct sun. They are doing well after two weeks of 100's |
RE: Advice needed on newly rooted plants
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This is a horrible year for rooting cuttings. sounds to me you've done real well. I used to order 7-15 gallon plastic pots from Mortons in TN. They were very reasonable, even with shipping. Have just restarted working with roses after a lapse of several years. I'll check their band prices. Maybe we could split an order. Enjoy the 'cool temps'. We're supposed to return to the normal high 90s :) |
RE: Advice needed on newly rooted plants
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| T-bred -- Stuewe & Sons in Oregon is a good place to purchase band pots via mail order. They used to sell pots in quantities smaller than a case and probably still do. I use my pots over and over, so I've not ordered from them recently. The 5.5 inch band pots work well for me, altho I've lately wished I had some deeper ones for certain roses and other plants. I'm posting a link to the Stuewe & Sons band pot page. Call the 800 number to ask if they still supply smaller quantities. In my experience, always GREAT customer service from them. |
Here is a link that might be useful: Steuwe & Sons
RE: Advice needed on newly rooted plants
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| Thanks so much Jaxondel!! I'm going to call them tomorrow to see if I can order 50 or so ( I'll post here to let you know Bluegirl) Going to compare a couple AV mixes today and tracking down some wilt pruf- I don't know why I haven't purchased that sooner! |
RE: Advice needed on newly rooted plants
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| Hey Jaxond, thanks for the link! I actually checked their site out before but never found the bands. BTW, do you guys prefer the larger (AB36) or smaller (AB35)? I've received both sizes from growers. Great--no more sawing drink bottles & boring holes:) |
RE: Advice needed on newly rooted plants
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| Bluegirl -- I use the AB36. It's the only size I have, so I can't say that I actually prefer it. It is, however, a size that works well for me in most cases. Altho I do root a lot of cuttings in band pots, I've not abandoned the use of those sawed-off plastic soda bottles wedged into cut-off milk containers. Some roses require that kind of environment if they're going to root for you. And when I'm fortunate enough to land a cutting from one that's hard to find, I always use the soda bottle method, even if the variety is reputed to root easily. |
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